State j of heat are necessary to raise the temperature

Assignment Help Chemistry
Reference no: EM13191260

The specific heat of iron metals is 0.450 J/(g.K). How many J of heat are necessary to raise the temperature of a 1.05-kg block of iron from 25.0 C to 88.5 C?

Reference no: EM13191260

Questions Cloud

State the effect of this procedural change on the resultion : A student in a hurry decides to let the solvent travel only half way up the chromatographic paper in chromatogram 2. predict the effect of this procedural change on the resultion
State the separation between hexane and heptane : One of the students in lab decided to use two fractionating columns (one on top of the other) instead of just one. How would this: a) affect the separation between hexane and heptane?
How you recommend to your management to implement project a : You have calculated the expected NPV of project A to be $3,758 and that of project B to be $3,114. Can you be certain that you should recommend to your management to implement project A.
Explain the normal boiling point of the liquid : The normal boiling point of the liquid is 425 K. Liquid, X, and Y are all in equilibrium at 342 K and 1800 bar. Tc = 571K, Pc= 46 bar
State j of heat are necessary to raise the temperature : How many J of heat are necessary to raise the temperature of a 1.05-kg block of iron from 25.0 C to 88.5 C?
Who were forced to pay more for the chemicals : As the spokesperson for the Environmental Protection Agency, how would you explain the economic reasons for these actions to angry customers of this company who were forced to pay more for the chemicals as a result of this government action.
Compute the ph of the solution taking into account : Calculate the pH of the solution, taking into account the activity coefficients for H+ (yH+ = 0.933) and IO3- (yIO3- = 0.928). Assume yHIO3 = 1. (Hint: quadratic)
Compute the amount of work in kilojoules : Calculate the amount of work in kilojoules (kj) needed to move an object that weighs 500 grams through a distance
Write down an equation for the firms short-run demand : A competitive firm has a production function described as follows. "Weekly output is the square root of the minimum of the number of units of capital and the number of units of labor employed per week." Suppose that in the short run this firm must..

Reviews

Write a Review

Chemistry Questions & Answers

  Determine the total pressure become

A container (8.65-L ) holds two gases mixture at 31 °C. The partial pressures of gas X and gas Y, respectively, are 0.206 atm and 0.867 atm. If 0.200 mol a third gas is added with no change in temperature or volume determine the total pressure be..

  What is the structure of a compound of molecular formula

what is the structure of a compound of molecular formula c10h14o2 that shows a strong IR absorbtion at 3150-2850cm^-1 and gives the following HNMR absorptions

  Calculate the number of moles of gaseous n2 contained

calculate the number of moles of gaseous N2 contained in a sample of 300 ml of gas saturated with water vapour at 25 degree celcius and 95 kPa.

  State placed in a microwave and subjected

Some ice cubes at 0 degrees celsius with a total mass of 335 g. are placed in a microwave and subjected to 750. W of energy for 5 minutes.

  Determine the mechanism for the synthesis

Determine the mechanism for the synthesis of p-nitroacetanilide from acetanilide and HNO 3 , nitric acid and H 2 SO 4 sulfuric acid?

  Calculate the boiling point of a solution

Benzene has a boiling point of 80.1 degrees celcius and a molal boiling point elevation constant of 2.53 degrees celcius/m. Calculate the boiling point of a solution containing 15.0 g of the non-electrolyte C6H4Br2 in 125 ml of benzene (sp gravity..

  How much heat will be required

The reaction 2NO (g)-> N2 (g) + O2 (g) has a H = 180.5 kJ. How much heat will be required to produce 44.8 L of NO by the reverse reaction?

  Explain nicotine is responsible for the addictive properties

Nicotine is responsible for the addictive properties of tobacco. Assume Kb1= 1.05 x 10^-6 and Kb2= 1.32 x 10^-11. Determine the pH of a 0.00120 M solution of nicotine.

  What is the molecular formula of cyclopropane

A mixture of cyclopropane gas and oxygen is used as an anesthetic. Cyclopropane contains 85.7% C and 14.3% H by mass. At 50.0C and .984 atm pressure, 1.56 g cyclopropane has a volume of 1.00 L. What is the molecular formula of cyclopropane?

  How much energy would be required

How much energy would be required to melt 74 g of HCl at its melting point of -110.8 ? C? ?Hfus for HCl is 14.2 cal/g and ?Hvap for HCl is 98.7 cal/g. Answer in units of cal.

  What is the mass of methyl alcohol in the sample

An organic liquid is a mixture of methyl alcohol and ethyl alcohol. A 0.220g sample of the liquid is burned in an excess of O2(g) and yields 0.342 g CO2(g). What is the mass of methyl alcohol in the sample?

  What is the specific heat of the metal

An unknown metal weighing 13.11 g at a temperature of 81.0*C is placed in a calorimeter containing 25.0 mL of water at a temperature of 25.0*C. The final equilibrium temperature is 30.0*C. What is the specific heat of the metal?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd